Commitments and Contingencies (Details)	3 Months Ended		6 Months Ended
	Jun. 30, 2015 USD ($) ft²	Jun. 30, 2014 USD ($)	Jun. 30, 2015 USD ($) ft²	Jun. 30, 2014 USD ($)
Commitments and Contingencies (Textual) [Abstract]
Natural gas processing and transportation agreement			5 years
Minimum delivery commitment to avoid paying gas deficiency fee			80.00%
Undiscounted minimum commitments	$ 4,500,000		$ 4,500,000
Transportation and processing fee under the agreement	1,400,000	$ 1,700,000
Drilling Rig Commitments
Commitments and Contingencies (Textual) [Abstract]
Maximum termination outstanding obligations of contracts	43,800,000		43,800,000
Construction Contracts
Commitments and Contingencies (Textual) [Abstract]
Maximum termination outstanding obligations of contracts	17,000,000		17,000,000
Payments made under contract	6,800,000		12,011,000	$ 0
Outside Operated Drilling Commitments
Commitments and Contingencies (Textual) [Abstract]
Minimum outstanding commitments	$ 22,800,000		$ 22,800,000
Minimum
Long-term Purchase Commitment [Line Items]
Area of Land | ft²	40,000		40,000
Maximum
Long-term Purchase Commitment [Line Items]
Area of Land | ft²	100,000		100,000